The art of the politician's kiss

In honour of Tony Blair and Sam Cam's attempt at an affectionate greeting at Tuesday's lunch at No 10, we have amassed a small but disgusting collection of political leaders essaying similar tasks. Warning: not for the squeamish or fainthearted. The Guardian cannot be held responsible for any retinas that voluntarily detach themselves and leap under the nearest bus to escape the sights you are about to see.